重型车Pems试验工况与中国工况对比研究

于津涛; 熊兴旺; 刘嘉伟; 张凡; 李梁

doi:10.3969/j.issn.1001-2222.2020.05.013

车用发动机 >

2020 , Vol. 0 >Issue 5: 80 - 86

DOI: https://doi.org/10.3969/j.issn.1001-2222.2020.05.013

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重型车Pems试验工况与中国工况对比研究

于津涛 ,
熊兴旺 ,
刘嘉伟 ,
张凡 ,
李梁

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（1.天津大学，天津 300072；2.中国汽车技术研究中心有限公司，北京 100176）

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Comparison between Pems Test Cycle and China Heavy-Duty Commercial Vehicle Test Cycle

YU Jintao ,
XIONG Xingwang ,
LIU Jiawei ,
ZHANG Fan ,
LI Liang

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(1.Tianjin University,Tianjin 300072,China;2.China Automotive Technology & Research Center Co.,Ltd.,Beijing 100176,China)

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摘要

针对一辆城市客车和一辆非城市货车进行了Pems试验，对比了Pems试验工况与中国工况的速度分布、加速度分布。结果表明：Pems客车试验工况中，速度分布存在4个峰值区间，加速度分布存在2个峰值区间；CHTC-B工况中，速度分布存在1个峰值区间，加速度分布存在1个峰值区间。Pems货车试验工况中，速度分布存在4个峰值区间，加速度分布存在2个峰值区间；CHTC-HT工况中，速度分布存在1个峰值区间，加速度分布存在3个峰值区间。对比功率计算式的系数进行了标定，并对比了Pems试验工况和中国工况的比功率分布。结果表明，在比功率［-2.7,2.7］区间内，Pems客车试验工况比功率分布为双峰曲线，CHTC-B工况为单峰曲线；Pems货车试验工况比功率分布为双峰曲线，CHTC-HT工况为单峰曲线。

关键词： Pems试验; 试验循环; 车速; 加速度; 比功率

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于津涛 , 熊兴旺 , 刘嘉伟 , 张凡 , 李梁 . 重型车Pems试验工况与中国工况对比研究[J]. 车用发动机, 2020 , 0(5) : 80 -86 . DOI: 10.3969/j.issn.1001-2222.2020.05.013

Abstract

Pems tests of city-permitted bus and cityforbidden heavy-duty truck were conducted respectively. Vehicle velocity distribution and acceleration distribution of Pems tests and China heavyduty commercial vehicle test cycles were then compared. The results show that there are 4 peak intervals for velocity distribution and 2 peak intervals for acceleration distribution in the Pems test of bus, compared with 1 peak interval for velocity and acceleration distribution respectively in the CHTC-B cycle. For the truck, the velocity and acceleration distributions show 4 and 2 peak intervals in the Pems test and 1 and 3 peak intervals in the CHTC-HT cycle. Coefficients of the formula used to calculate vehicle specific power are calibrated. Vehicle specific power distribution of Pems tests is further compared to that of China heavyduty commercial vehicle test cycle. According to the results, the vehicle specific power distribution curves have double peaks in the Pems test and one peak in the CHTC-B cycle and CHTC-HT cycle for both bus and heavyduty truck between -2.7 kW/t and 2.7 kW/t.

Key words： Pems test; test cycle; vehicle velocity; acceleration; specific power

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